Terrorist Attacks Worldwide by Decades (1970 - 2015)

Size of the bubble depicts the number of fatalities

 Group Name:
 ISIL SL 
 NPA FARC 
 FMLN IRA 
 PKK Boko Haram 
 Taliban Al-Shabaab 
 TTP FDN 
 LTTE AQAP 
 Houthi extremists CPI - Maoist 
 ELN ETA 
 Maoists Palestinians